我现在做的是web项目,当后台发生错误的时候,为了方便前端能够查看到错误,需要使用try{}catch{}方法,但是这样写太麻烦了,我们可以使用@ControllerAdvice+@ExceptionHandler进行全局异常的定义,例如:
/**
* 业务处理异常
*/
public class BusinessHandlingException extends RuntimeException {
private static final long serialVersionUID = -8999510391137855828L;
public BusinessHandlingException(String code, String message) {
super(code + SPLIT_MARK + message);
}
}
@Authorization
@RequestMapping(value = "test", method = RequestMethod.POST)
public Object test(@RequestBody JSONObject parameter) {
String phoneNumber = getNotBlankString(parameter, "phoneNumber");
if (!ValidateUtils.phoneNumber(phoneNumber)) {
throw new BusinessHandlingException("phoneNumber-parameter-error", "手机号格式不正确");
}
return ResponseData.getResult(true);
}
@ControllerAdvice(annotations = RestController.class)
public class ExceptionAdvice {
/**
* 业务异常
*/
@CrossOrigin
@ResponseBody
@ExceptionHandler(BusinessHandlingException.class)
@ResponseStatus(HttpStatus.OK)
public ResponseEntity<Map<String, Object>> businessHandlingExceptionHandle(BusinessHandlingException e) {
HttpServletResponse response = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();
response.setHeader("Access-Control-Allow-Origin", "*");
return ResponseEntity.ok(ResponseData.getExceptionResult(CODE_40007, MESSAGE_40007, e.getMessage()));
}
}